Finding the Fourth Proportional to 8,999.10, 12,418.29 and 5,019.42

Step by Step Solution

1. Step 1: Write the proportion equation
   8,999.10 : 12,418.29 = 5,019.42 : x
2. Step 2: Convert to fraction form
   8,999.10/12,418.29 = 5,019.42/x
3. Step 3: Cross multiply
   8,999.10x = 12,418.29 × 5,019.42
4. Step 4: Simplify right side
   8,999.10x = 62,332,613.19
5. Step 5: Solve for x
   x = 62,332,613.19/8,999.10
6. Step 6: Final answer
   x = 6,926.54